/Engine/Source/Runtime/Engine/Classes/GameFramework/Character.h
Apply momentum caused by damage.
virtual void ApplyDamageMomentum ( float DamageTaken, [FDamageEvent](API\Runtime\Engine\Engine\FDamageEvent) const & DamageEvent, [APawn](API\Runtime\Engine\GameFramework\APawn) * PawnInstigator, [AActor](API\Runtime\Engine\GameFramework\AActor) * DamageCauser )